forked from KolibriOS/kolibrios
735 lines
19 KiB
C
735 lines
19 KiB
C
/*
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* OpenTyrian: A modern cross-platform port of Tyrian
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* Copyright (C) 2007-2009 The OpenTyrian Development Team
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "sprite.h"
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#include "file.h"
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#include "opentyr.h"
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#include "video.h"
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#include <assert.h>
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#include <ctype.h>
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Sprite_array sprite_table[SPRITE_TABLES_MAX];
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Sprite2_array eShapes[6];
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Sprite2_array shapesC1, shapes6, shapes9, shapesW2;
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void load_sprites_file( unsigned int table, const char *filename )
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{
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free_sprites(table);
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FILE *f = dir_fopen_die(data_dir(), filename, "rb");
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load_sprites(table, f);
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fclose(f);
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}
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void load_sprites( unsigned int table, FILE *f )
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{
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free_sprites(table);
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Uint16 temp;
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efread(&temp, sizeof(Uint16), 1, f);
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sprite_table[table].count = temp;
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assert(sprite_table[table].count <= SPRITES_PER_TABLE_MAX);
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for (unsigned int i = 0; i < sprite_table[table].count; ++i)
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{
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Sprite * const cur_sprite = sprite(table, i);
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if (!getc(f)) // sprite is empty
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continue;
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efread(&cur_sprite->width, sizeof(Uint16), 1, f);
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efread(&cur_sprite->height, sizeof(Uint16), 1, f);
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efread(&cur_sprite->size, sizeof(Uint16), 1, f);
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cur_sprite->data = malloc(cur_sprite->size);
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efread(cur_sprite->data, sizeof(Uint8), cur_sprite->size, f);
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}
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}
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void free_sprites( unsigned int table )
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{
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for (unsigned int i = 0; i < sprite_table[table].count; ++i)
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{
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Sprite * const cur_sprite = sprite(table, i);
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cur_sprite->width = 0;
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cur_sprite->height = 0;
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cur_sprite->size = 0;
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free(cur_sprite->data);
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cur_sprite->data = NULL;
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}
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sprite_table[table].count = 0;
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}
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// does not clip on left or right edges of surface
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void blit_sprite( SDL_Surface *surface, int x, int y, unsigned int table, unsigned int index )
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{
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if (index >= sprite_table[table].count || !sprite_exists(table, index))
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{
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assert(false);
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return;
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}
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const Sprite * const cur_sprite = sprite(table, index);
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const Uint8 *data = cur_sprite->data;
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const Uint8 * const data_ul = data + cur_sprite->size;
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const unsigned int width = cur_sprite->width;
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unsigned int x_offset = 0;
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assert(surface->format->BitsPerPixel == 8);
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Uint8 * pixels = (Uint8 *)surface->pixels + (y * surface->pitch) + x;
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const Uint8 * const pixels_ll = (Uint8 *)surface->pixels, // lower limit
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* const pixels_ul = (Uint8 *)surface->pixels + (surface->h * surface->pitch); // upper limit
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for (; data < data_ul; ++data)
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{
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switch (*data)
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{
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case 255: // transparent pixels
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data++; // next byte tells how many
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pixels += *data;
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x_offset += *data;
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break;
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case 254: // next pixel row
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pixels += width - x_offset;
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x_offset = width;
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break;
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case 253: // 1 transparent pixel
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pixels++;
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x_offset++;
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break;
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default: // set a pixel
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if (pixels >= pixels_ul)
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return;
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if (pixels >= pixels_ll)
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*pixels = *data;
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pixels++;
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x_offset++;
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break;
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}
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if (x_offset >= width)
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{
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pixels += surface->pitch - x_offset;
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x_offset = 0;
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}
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}
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}
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// does not clip on left or right edges of surface
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void blit_sprite_blend( SDL_Surface *surface, int x, int y, unsigned int table, unsigned int index )
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{
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if (index >= sprite_table[table].count || !sprite_exists(table, index))
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{
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assert(false);
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return;
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}
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const Sprite * const cur_sprite = sprite(table, index);
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const Uint8 *data = cur_sprite->data;
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const Uint8 * const data_ul = data + cur_sprite->size;
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const unsigned int width = cur_sprite->width;
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unsigned int x_offset = 0;
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assert(surface->format->BitsPerPixel == 8);
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Uint8 * pixels = (Uint8 *)surface->pixels + (y * surface->pitch) + x;
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const Uint8 * const pixels_ll = (Uint8 *)surface->pixels, // lower limit
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* const pixels_ul = (Uint8 *)surface->pixels + (surface->h * surface->pitch); // upper limit
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for (; data < data_ul; ++data)
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{
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switch (*data)
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{
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case 255: // transparent pixels
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data++; // next byte tells how many
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pixels += *data;
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x_offset += *data;
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break;
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case 254: // next pixel row
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pixels += width - x_offset;
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x_offset = width;
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break;
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case 253: // 1 transparent pixel
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pixels++;
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x_offset++;
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break;
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default: // set a pixel
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if (pixels >= pixels_ul)
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return;
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if (pixels >= pixels_ll)
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*pixels = (*data & 0xf0) | (((*pixels & 0x0f) + (*data & 0x0f)) / 2);
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pixels++;
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x_offset++;
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break;
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}
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if (x_offset >= width)
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{
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pixels += surface->pitch - x_offset;
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x_offset = 0;
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}
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}
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}
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// does not clip on left or right edges of surface
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// unsafe because it doesn't check that value won't overflow into hue
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// we can replace it when we know that we don't rely on that 'feature'
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void blit_sprite_hv_unsafe( SDL_Surface *surface, int x, int y, unsigned int table, unsigned int index, Uint8 hue, Sint8 value )
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{
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if (index >= sprite_table[table].count || !sprite_exists(table, index))
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{
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assert(false);
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return;
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}
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hue <<= 4;
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const Sprite * const cur_sprite = sprite(table, index);
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const Uint8 *data = cur_sprite->data;
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const Uint8 * const data_ul = data + cur_sprite->size;
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const unsigned int width = cur_sprite->width;
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unsigned int x_offset = 0;
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assert(surface->format->BitsPerPixel == 8);
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Uint8 * pixels = (Uint8 *)surface->pixels + (y * surface->pitch) + x;
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const Uint8 * const pixels_ll = (Uint8 *)surface->pixels, // lower limit
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* const pixels_ul = (Uint8 *)surface->pixels + (surface->h * surface->pitch); // upper limit
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for (; data < data_ul; ++data)
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{
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switch (*data)
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{
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case 255: // transparent pixels
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data++; // next byte tells how many
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pixels += *data;
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x_offset += *data;
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break;
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case 254: // next pixel row
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pixels += width - x_offset;
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x_offset = width;
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break;
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case 253: // 1 transparent pixel
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pixels++;
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x_offset++;
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break;
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default: // set a pixel
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if (pixels >= pixels_ul)
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return;
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if (pixels >= pixels_ll)
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*pixels = hue | ((*data & 0x0f) + value);
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pixels++;
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x_offset++;
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break;
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}
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if (x_offset >= width)
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{
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pixels += surface->pitch - x_offset;
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x_offset = 0;
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}
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}
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}
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// does not clip on left or right edges of surface
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void blit_sprite_hv( SDL_Surface *surface, int x, int y, unsigned int table, unsigned int index, Uint8 hue, Sint8 value )
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{
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if (index >= sprite_table[table].count || !sprite_exists(table, index))
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{
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assert(false);
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return;
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}
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hue <<= 4;
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const Sprite * const cur_sprite = sprite(table, index);
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const Uint8 *data = cur_sprite->data;
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const Uint8 * const data_ul = data + cur_sprite->size;
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const unsigned int width = cur_sprite->width;
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unsigned int x_offset = 0;
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assert(surface->format->BitsPerPixel == 8);
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Uint8 * pixels = (Uint8 *)surface->pixels + (y * surface->pitch) + x;
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const Uint8 * const pixels_ll = (Uint8 *)surface->pixels, // lower limit
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* const pixels_ul = (Uint8 *)surface->pixels + (surface->h * surface->pitch); // upper limit
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for (; data < data_ul; ++data)
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{
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switch (*data)
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{
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case 255: // transparent pixels
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data++; // next byte tells how many
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pixels += *data;
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x_offset += *data;
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break;
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case 254: // next pixel row
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pixels += width - x_offset;
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x_offset = width;
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break;
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case 253: // 1 transparent pixel
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pixels++;
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x_offset++;
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break;
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default: // set a pixel
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if (pixels >= pixels_ul)
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return;
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if (pixels >= pixels_ll)
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{
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Uint8 temp_value = (*data & 0x0f) + value;
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if (temp_value > 0xf)
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temp_value = (temp_value >= 0x1f) ? 0x0 : 0xf;
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*pixels = hue | temp_value;
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}
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pixels++;
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x_offset++;
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break;
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}
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if (x_offset >= width)
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{
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pixels += surface->pitch - x_offset;
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x_offset = 0;
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}
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}
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}
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// does not clip on left or right edges of surface
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void blit_sprite_hv_blend( SDL_Surface *surface, int x, int y, unsigned int table, unsigned int index, Uint8 hue, Sint8 value )
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{
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if (index >= sprite_table[table].count || !sprite_exists(table, index))
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{
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assert(false);
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return;
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}
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hue <<= 4;
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const Sprite * const cur_sprite = sprite(table, index);
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const Uint8 *data = cur_sprite->data;
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const Uint8 * const data_ul = data + cur_sprite->size;
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const unsigned int width = cur_sprite->width;
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unsigned int x_offset = 0;
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assert(surface->format->BitsPerPixel == 8);
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Uint8 * pixels = (Uint8 *)surface->pixels + (y * surface->pitch) + x;
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const Uint8 * const pixels_ll = (Uint8 *)surface->pixels, // lower limit
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* const pixels_ul = (Uint8 *)surface->pixels + (surface->h * surface->pitch); // upper limit
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for (; data < data_ul; ++data)
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{
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switch (*data)
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{
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case 255: // transparent pixels
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data++; // next byte tells how many
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pixels += *data;
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x_offset += *data;
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break;
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case 254: // next pixel row
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pixels += width - x_offset;
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x_offset = width;
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break;
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case 253: // 1 transparent pixel
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pixels++;
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x_offset++;
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break;
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default: // set a pixel
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if (pixels >= pixels_ul)
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return;
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if (pixels >= pixels_ll)
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{
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Uint8 temp_value = (*data & 0x0f) + value;
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if (temp_value > 0xf)
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temp_value = (temp_value >= 0x1f) ? 0x0 : 0xf;
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*pixels = hue | (((*pixels & 0x0f) + temp_value) / 2);
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}
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pixels++;
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x_offset++;
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break;
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}
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if (x_offset >= width)
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{
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pixels += surface->pitch - x_offset;
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x_offset = 0;
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}
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}
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}
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// does not clip on left or right edges of surface
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void blit_sprite_dark( SDL_Surface *surface, int x, int y, unsigned int table, unsigned int index, bool black )
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{
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if (index >= sprite_table[table].count || !sprite_exists(table, index))
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{
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assert(false);
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return;
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}
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const Sprite * const cur_sprite = sprite(table, index);
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const Uint8 *data = cur_sprite->data;
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const Uint8 * const data_ul = data + cur_sprite->size;
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const unsigned int width = cur_sprite->width;
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unsigned int x_offset = 0;
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assert(surface->format->BitsPerPixel == 8);
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Uint8 * pixels = (Uint8 *)surface->pixels + (y * surface->pitch) + x;
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const Uint8 * const pixels_ll = (Uint8 *)surface->pixels, // lower limit
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* const pixels_ul = (Uint8 *)surface->pixels + (surface->h * surface->pitch); // upper limit
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for (; data < data_ul; ++data)
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{
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switch (*data)
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{
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case 255: // transparent pixels
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data++; // next byte tells how many
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pixels += *data;
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x_offset += *data;
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break;
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case 254: // next pixel row
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pixels += width - x_offset;
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x_offset = width;
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break;
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case 253: // 1 transparent pixel
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pixels++;
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x_offset++;
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break;
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default: // set a pixel
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if (pixels >= pixels_ul)
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return;
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if (pixels >= pixels_ll)
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*pixels = black ? 0x00 : ((*pixels & 0xf0) | ((*pixels & 0x0f) / 2));
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pixels++;
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x_offset++;
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break;
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}
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if (x_offset >= width)
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{
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pixels += surface->pitch - x_offset;
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x_offset = 0;
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}
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}
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}
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void JE_loadCompShapes( Sprite2_array *sprite2s, char s )
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{
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char buffer[20];
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snprintf(buffer, sizeof(buffer), "newsh%c.shp", tolower((unsigned char)s));
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FILE *f = dir_fopen_die(data_dir(), buffer, "rb");
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sprite2s->size = ftell_eof(f);
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JE_loadCompShapesB(sprite2s, f);
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fclose(f);
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}
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void JE_loadCompShapesB( Sprite2_array *sprite2s, FILE *f )
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{
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free_sprite2s(sprite2s);
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sprite2s->data = malloc(sizeof(Uint8) * sprite2s->size);
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efread(sprite2s->data, sizeof(Uint8), sprite2s->size, f);
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}
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void free_sprite2s( Sprite2_array *sprite2s )
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{
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free(sprite2s->data);
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sprite2s->data = NULL;
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}
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// does not clip on left or right edges of surface
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void blit_sprite2( SDL_Surface *surface, int x, int y, Sprite2_array sprite2s, unsigned int index )
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{
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assert(surface->format->BitsPerPixel == 8);
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Uint8 * pixels = (Uint8 *)surface->pixels + (y * surface->pitch) + x;
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const Uint8 * const pixels_ll = (Uint8 *)surface->pixels, // lower limit
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* const pixels_ul = (Uint8 *)surface->pixels + (surface->h * surface->pitch); // upper limit
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const Uint8 *data = sprite2s.data + SDL_SwapLE16(((Uint16 *)sprite2s.data)[index - 1]);
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for (; *data != 0x0f; ++data)
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{
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pixels += *data & 0x0f; // second nibble: transparent pixel count
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unsigned int count = (*data & 0xf0) >> 4; // first nibble: opaque pixel count
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if (count == 0) // move to next pixel row
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{
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pixels += VGAScreen->pitch - 12;
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}
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else
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{
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while (count--)
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{
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++data;
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if (pixels >= pixels_ul)
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return;
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if (pixels >= pixels_ll)
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*pixels = *data;
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++pixels;
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}
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}
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}
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}
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// does not clip on left or right edges of surface
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void blit_sprite2_blend( SDL_Surface *surface, int x, int y, Sprite2_array sprite2s, unsigned int index )
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{
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assert(surface->format->BitsPerPixel == 8);
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Uint8 * pixels = (Uint8 *)surface->pixels + (y * surface->pitch) + x;
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const Uint8 * const pixels_ll = (Uint8 *)surface->pixels, // lower limit
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* const pixels_ul = (Uint8 *)surface->pixels + (surface->h * surface->pitch); // upper limit
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const Uint8 *data = sprite2s.data + SDL_SwapLE16(((Uint16 *)sprite2s.data)[index - 1]);
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for (; *data != 0x0f; ++data)
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{
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pixels += *data & 0x0f; // second nibble: transparent pixel count
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unsigned int count = (*data & 0xf0) >> 4; // first nibble: opaque pixel count
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if (count == 0) // move to next pixel row
|
|
{
|
|
pixels += VGAScreen->pitch - 12;
|
|
}
|
|
else
|
|
{
|
|
while (count--)
|
|
{
|
|
++data;
|
|
|
|
if (pixels >= pixels_ul)
|
|
return;
|
|
if (pixels >= pixels_ll)
|
|
*pixels = (((*data & 0x0f) + (*pixels & 0x0f)) / 2) | (*data & 0xf0);
|
|
|
|
++pixels;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// does not clip on left or right edges of surface
|
|
void blit_sprite2_darken( SDL_Surface *surface, int x, int y, Sprite2_array sprite2s, unsigned int index )
|
|
{
|
|
assert(surface->format->BitsPerPixel == 8);
|
|
Uint8 * pixels = (Uint8 *)surface->pixels + (y * surface->pitch) + x;
|
|
const Uint8 * const pixels_ll = (Uint8 *)surface->pixels, // lower limit
|
|
* const pixels_ul = (Uint8 *)surface->pixels + (surface->h * surface->pitch); // upper limit
|
|
|
|
const Uint8 *data = sprite2s.data + SDL_SwapLE16(((Uint16 *)sprite2s.data)[index - 1]);
|
|
|
|
for (; *data != 0x0f; ++data)
|
|
{
|
|
pixels += *data & 0x0f; // second nibble: transparent pixel count
|
|
unsigned int count = (*data & 0xf0) >> 4; // first nibble: opaque pixel count
|
|
|
|
if (count == 0) // move to next pixel row
|
|
{
|
|
pixels += VGAScreen->pitch - 12;
|
|
}
|
|
else
|
|
{
|
|
while (count--)
|
|
{
|
|
++data;
|
|
|
|
if (pixels >= pixels_ul)
|
|
return;
|
|
if (pixels >= pixels_ll)
|
|
*pixels = ((*pixels & 0x0f) / 2) + (*pixels & 0xf0);
|
|
|
|
++pixels;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// does not clip on left or right edges of surface
|
|
void blit_sprite2_filter( SDL_Surface *surface, int x, int y, Sprite2_array sprite2s, unsigned int index, Uint8 filter )
|
|
{
|
|
assert(surface->format->BitsPerPixel == 8);
|
|
Uint8 * pixels = (Uint8 *)surface->pixels + (y * surface->pitch) + x;
|
|
const Uint8 * const pixels_ll = (Uint8 *)surface->pixels, // lower limit
|
|
* const pixels_ul = (Uint8 *)surface->pixels + (surface->h * surface->pitch); // upper limit
|
|
|
|
const Uint8 *data = sprite2s.data + SDL_SwapLE16(((Uint16 *)sprite2s.data)[index - 1]);
|
|
|
|
for (; *data != 0x0f; ++data)
|
|
{
|
|
pixels += *data & 0x0f; // second nibble: transparent pixel count
|
|
unsigned int count = (*data & 0xf0) >> 4; // first nibble: opaque pixel count
|
|
|
|
if (count == 0) // move to next pixel row
|
|
{
|
|
pixels += VGAScreen->pitch - 12;
|
|
}
|
|
else
|
|
{
|
|
while (count--)
|
|
{
|
|
++data;
|
|
|
|
if (pixels >= pixels_ul)
|
|
return;
|
|
if (pixels >= pixels_ll)
|
|
*pixels = filter | (*data & 0x0f);
|
|
|
|
++pixels;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// does not clip on left or right edges of surface
|
|
void blit_sprite2x2( SDL_Surface *surface, int x, int y, Sprite2_array sprite2s, unsigned int index )
|
|
{
|
|
blit_sprite2(surface, x, y, sprite2s, index);
|
|
blit_sprite2(surface, x + 12, y, sprite2s, index + 1);
|
|
blit_sprite2(surface, x, y + 14, sprite2s, index + 19);
|
|
blit_sprite2(surface, x + 12, y + 14, sprite2s, index + 20);
|
|
}
|
|
|
|
// does not clip on left or right edges of surface
|
|
void blit_sprite2x2_blend( SDL_Surface *surface, int x, int y, Sprite2_array sprite2s, unsigned int index )
|
|
{
|
|
blit_sprite2_blend(surface, x, y, sprite2s, index);
|
|
blit_sprite2_blend(surface, x + 12, y, sprite2s, index + 1);
|
|
blit_sprite2_blend(surface, x, y + 14, sprite2s, index + 19);
|
|
blit_sprite2_blend(surface, x + 12, y + 14, sprite2s, index + 20);
|
|
}
|
|
|
|
// does not clip on left or right edges of surface
|
|
void blit_sprite2x2_darken( SDL_Surface *surface, int x, int y, Sprite2_array sprite2s, unsigned int index )
|
|
{
|
|
blit_sprite2_darken(surface, x, y, sprite2s, index);
|
|
blit_sprite2_darken(surface, x + 12, y, sprite2s, index + 1);
|
|
blit_sprite2_darken(surface, x, y + 14, sprite2s, index + 19);
|
|
blit_sprite2_darken(surface, x + 12, y + 14, sprite2s, index + 20);
|
|
}
|
|
|
|
|
|
void JE_loadMainShapeTables( const char *shpfile )
|
|
{
|
|
enum { SHP_NUM = 12 };
|
|
|
|
FILE *f = dir_fopen_die(data_dir(), shpfile, "rb");
|
|
|
|
JE_word shpNumb;
|
|
JE_longint shpPos[SHP_NUM + 1]; // +1 for storing file length
|
|
|
|
efread(&shpNumb, sizeof(JE_word), 1, f);
|
|
assert(shpNumb + 1u == COUNTOF(shpPos));
|
|
|
|
for (unsigned int i = 0; i < shpNumb; ++i)
|
|
efread(&shpPos[i], sizeof(JE_longint), 1, f);
|
|
|
|
fseek(f, 0, SEEK_END);
|
|
for (unsigned int i = shpNumb; i < COUNTOF(shpPos); ++i)
|
|
shpPos[i] = ftell(f);
|
|
|
|
int i;
|
|
// fonts, interface, option sprites
|
|
for (i = 0; i < 7; i++)
|
|
{
|
|
fseek(f, shpPos[i], SEEK_SET);
|
|
load_sprites(i, f);
|
|
}
|
|
|
|
// player shot sprites
|
|
shapesC1.size = shpPos[i + 1] - shpPos[i];
|
|
JE_loadCompShapesB(&shapesC1, f);
|
|
i++;
|
|
|
|
// player ship sprites
|
|
shapes9.size = shpPos[i + 1] - shpPos[i];
|
|
JE_loadCompShapesB(&shapes9 , f);
|
|
i++;
|
|
|
|
// power-up sprites
|
|
eShapes[5].size = shpPos[i + 1] - shpPos[i];
|
|
JE_loadCompShapesB(&eShapes[5], f);
|
|
i++;
|
|
|
|
// coins, datacubes, etc sprites
|
|
eShapes[4].size = shpPos[i + 1] - shpPos[i];
|
|
JE_loadCompShapesB(&eShapes[4], f);
|
|
i++;
|
|
|
|
// more player shot sprites
|
|
shapesW2.size = shpPos[i + 1] - shpPos[i];
|
|
JE_loadCompShapesB(&shapesW2, f);
|
|
|
|
fclose(f);
|
|
}
|
|
|
|
void free_main_shape_tables( void )
|
|
{
|
|
for (uint i = 0; i < COUNTOF(sprite_table); ++i)
|
|
free_sprites(i);
|
|
|
|
free_sprite2s(&shapesC1);
|
|
free_sprite2s(&shapes9);
|
|
free_sprite2s(&eShapes[5]);
|
|
free_sprite2s(&eShapes[4]);
|
|
free_sprite2s(&shapesW2);
|
|
}
|